What Forces Act on a Descending Cylinder Attached to a Tape?

• kjn11994
In summary, the problem involves a uniform solid cylinder (mass M, radius R) being held by a cloth tape attached to the ceiling. When released from rest, the cylinder descends while unwinding from the tape without slipping. The forces acting on the cylinder are tension in the tape, force of gravity, and (mv^2)/r. The directions of these forces are not specified.
kjn11994

Homework Statement

A cloth tape is wound around the outside of a uniform solid cylinder (mass M, radius R) and fastened to the ceiling as shown in the diagram below. They cylinder is held with the tape vertical and then released from rest. as the cylinder descends, it unwinds from the tape without slipping. The moment of inertia of a uniform solid cylinder about its center is 1/2MR^2.

diagram: http://imgur.com/h0v07

what are the forces acting on the cylinder?

The Attempt at a Solution

http://imgur.com/eyjPP

so far I'm pretty sure there should be tension in the tape, force of gravity, some torque and (mv^2)/r but I have no clue which directions they should go if they even apply

so then, would these be all of the forces?

http://imgur.com/ofZTp

1. What are the different types of forces acting on a cylinder?

The different types of forces acting on a cylinder are weight, normal force, frictional force, and buoyant force.

2. How does weight affect a cylinder?

Weight is the force of gravity acting on an object. In the case of a cylinder, weight is the downward force that pulls the cylinder towards the ground.

3. What is the normal force on a cylinder?

The normal force is the force exerted by a surface on an object that is in contact with it. In the case of a cylinder, the normal force is the upward force exerted by the surface supporting the cylinder.

4. How does friction affect a cylinder?

Friction is the force that resists the motion of an object. In the case of a cylinder, friction can either help or hinder its movement depending on the direction of the force.

5. What is buoyant force and how does it affect a cylinder?

Buoyant force is the upward force exerted by a fluid on an object that is partially or fully submerged in it. In the case of a cylinder, the buoyant force can either support or lift the cylinder depending on its density and the density of the fluid it is submerged in.

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